Investigated The Strength Of Rolling Stock As A Fuzzy Function,
2019
School of Engineering, Griffith University, Australia
Investigated The Strength Of Rolling Stock As A Fuzzy Function, M.L. Waail, R.V. Rahimov
Journal of Tashkent Institute of Railway Engineers
In this paper we use Fuzzy Set Theory to solve one of the essential problems in Railway Engineering: estimate the strength of rolling stock. As known, the strength of, any, rolling stock depends upon several factors that cannot determine them accurately. Therefore, we can consider them as fuzzy factors. The strength of any rolling stock can be changed depending on its operating conditions and the intensive of operation, that can consider as fuzzy factors too. A new proposal method developed depending on Fuzzy Set Theory to estimate the strength of mobile equipment or to compare between several rolling stocks for …
Mathematical Models Of Differential Magnetic Circuits Of Converters With Movable Screens And Distributed Parameters,
2019
Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan
Mathematical Models Of Differential Magnetic Circuits Of Converters With Movable Screens And Distributed Parameters, S.F. Amirov, O.T. Boltayev
Journal of Tashkent Institute of Railway Engineers
In the article the mathematical models of differential magnetic transducers with movable electromagnetic screens and with distributed parameters, taking into account the magnetic flux scattering, are developed. To develop a mathematical model of the transducer, the distribution expression of magnetic fluxes before the moving and after the moving parts are obtained using the method of magnetic circuit dismemberment, and the resulting magnetic flux is determined by the overlay method. The developed mathematical models showed that the discrepancy between experimental and theoretical results does not exceed 8-11%.
The Model Of Network Bandwidth When Servicing Multi-Service Traffic,
2019
Petersburg State University of Railways of Emperor Alexander I, Russia
The Model Of Network Bandwidth When Servicing Multi-Service Traffic, О.А. Turdiyev, А.B. Tukhtakhodjaev, E.S. Abdullaev
Journal of Tashkent Institute of Railway Engineers
An important issue of ensuring the quality of service on multiservice networks is the correct calculation of their capacity. The proposed numerical methods for assessing the quality characteristics in various disciplines of service applications are time-consuming and do not allow you to quickly manage the resources of the network. In this paper, it is proposed to choose the right from an economic point of view, the optimal resource multiservice network
Calculation Of The Frame Of Locomotives Tem2 In Operation,
2019
Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan
Calculation Of The Frame Of Locomotives Tem2 In Operation, M.Sh. Valiyev, E.H. Astanov
Journal of Tashkent Institute of Railway Engineers
The article considers the frame of TEM-2 locomotives taking into account the stresses arising in the operation processes. The calculation of the frame of the locomotive TEM2 makes it possible to assess the tensile-deformed state of the frame and to give a comparative assessment of the structural strength, reliability and long service life before and after their useful use
Improving The Operation Of The Automatic Temperature Control System For Water And Oil Of Diesel Systems Of A Diesel Locomotive 2te10m,
2019
Alexander I St. Petersburg State Transport University, 190031 Saint Petersburg, 9 Moskovsky pr.
Improving The Operation Of The Automatic Temperature Control System For Water And Oil Of Diesel Systems Of A Diesel Locomotive 2te10m, D.N. Kurilkin, A.V. Osipov, K.U. Muminov
Journal of Tashkent Institute of Railway Engineers
Maintaining optimal water and oil temperatures for diesel systems of a diesel engine 2TE10M is carried out by a system of automatic temperature control. How efficiently this regulation system works will determine the quality of the diesel generator set. Evaluation of the effectiveness of the automatic temperature control system was carried out on the basis of the use of diesel power allocated to the cooling chamber fan drive. The fan drive of the refrigeration chamber of the 2TE10M diesel locomotive includes a hydromechanical gearbox with a fluid coupling of variable filling, for which development of a mathematical model, refinement of …
To Analysis Of The Stressed Condition And Long Durability Of Cylindrical
And Conic Pipes Of Polymeric Materials,
2019
Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan
To Analysis Of The Stressed Condition And Long Durability Of Cylindrical And Conic Pipes Of Polymeric Materials, A. Abdusattarov, F.E. Abduqodirov, D.N. Shamsiyev
Journal of Tashkent Institute of Railway Engineers
The article considers the solution of the problem of long-term strength and damage of a conical pipe and a hollow cylinder bonded to a thin-walled shell under the action of internal pressure, taking into account the influence of visco-elastic properties of the material on the stress-strain state
Choice Of Basic Parameters, Calculation And Design Of Pulse Magnetizing Devices,
2019
Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan
Choice Of Basic Parameters, Calculation And Design Of Pulse Magnetizing Devices, J.F. Kurbanov
Journal of Tashkent Institute of Railway Engineers
The purpose of this work is to develop methods and devices degaussing rail lashes. Magnetization in railway transport plays an important role for the safety of train traffic. Therefore, it is necessary to develop methods and devices for the demagnetization of products in railway automation and remote control, which is an urgent task. The residual magnetization leads to swelling of the welded joints of the rails, which leads to the formation of cracks, which can lead to train accidents during their movement. During the operation of the railways, magnetization also occurs due to the rotation of the wheel sets and …
Development Of Railway Automation And Telemechanics Systems In Modern Conditions,
2019
Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan
Development Of Railway Automation And Telemechanics Systems In Modern Conditions, N.M. Aripov, D.X. Rixsiyev
Journal of Tashkent Institute of Railway Engineers
The article deals with the development of railway automation and telemechanics systems in modern conditions by upgrading existing track receivers of rail circuits. We recommend a microcontroller-based track receiver for station rail circuits. The developed electrical device-an electronic pulse-phase track receiver based on a microcontroller - will serve to improve the existing relay track receivers, increase the reliability and service life of the elements of the rail chain, minimize preventive maintenance, and reduce the cost of equipment. The proposed solution significantly reduces the risk of dangerous failures of station rail circuits, and also increases the safety of train traffic
Modeling Of Algorithms For Searching For Failures In Rail Circuits Of Railway Automation And Telemechanics Using Hierarchical Colored Petri Time Networks,
2019
Alexander I St. Petersburg State Transport University, 190031 Saint Petersburg, 9 Moskovsky pr.
Modeling Of Algorithms For Searching For Failures In Rail Circuits Of Railway Automation And Telemechanics Using Hierarchical Colored Petri Time Networks, P.E. Bulavskiy, O.K. Vaisov
Journal of Tashkent Institute of Railway Engineers
Studies have been carried out to estimate the recovery time of the operation of rail circuits of alternating current of 25 Hz, taking into account the formalization of technological processes for searching and eliminating failures based on the apparatus of hierarchical color temporary Petri nets. The developed simulation model is constructed by analyzing the state of technical means, statistical, regulatory documentation and observing technical specifications and regulations, local conditions and the location of signal points on the stage. The methods of the theory of Petri nets are used, which are based on the discrete-event paradigm of simulation modeling and the …
Labor Conditions Of Locomotive Staff Of Jsc "Uzbekiston Temir Yullari",
2019
Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan
Labor Conditions Of Locomotive Staff Of Jsc "Uzbekiston Temir Yullari", O.T. Aliev
Journal of Tashkent Institute of Railway Engineers
The paper analyzes the results of certification of jobs for locomotive crew workers at the electric locomotive depot TCH-1, which is part of the structure of JSC “Uzbekistan Temir Yollari”. The working conditions of locomotive drivers and their assistants are determined with the influence of external and internal production factors on them. Trends in the occurrence of occupational diseases, such as sensorineural hearing loss and vibration disease in locomotive crew workers, were identified. Specific proposals for identified deficiencies are identified. According to the results of studies, it was determined that in such circumstances it is possible to provoke durable multifunctional …
Express Delivery By Rail Using Speed And High-Speed Trains,
2019
Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan
Express Delivery By Rail Using Speed And High-Speed Trains, Sh.Sh. Kayumov
Journal of Tashkent Institute of Railway Engineers
Currently, fast delivery of documents, money and small parcels are in great demand in the country. Due to the slow speed of delivery and quality of service, fewer and fewer people trust the state mail. In the article, the author suggests using speed and high-speed trains for these purposes, which will enable users of Express Mail to save time and money
Development Of Economic And Mathematical Model Of Calculation Of Expenses At Processing Of Cars At Sorting Station,
2019
Petersburg State University of Railways of Emperor Alexander I, Russia
Development Of Economic And Mathematical Model Of Calculation Of Expenses At Processing Of Cars At Sorting Station, D.B. Butunov
Journal of Tashkent Institute of Railway Engineers
In this article the model is developed for calculation of the expenses connected with processing of cars on marshalling yard. Methods of economic-mathematical modeling are applied. It is formulated technique for definition of expenses when processing cars on marshalling yard. Expenses, the cars connected with processing on the example of classification yard service of "Ch" JSC UTY are calculated. Dynamics and structure of expenses by types of works on processing of cars at the station "Ch" is considered
Prospective Development Of The Railway Station Akhangaran-Tukimachi-Sirdarya,
2019
Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan
Prospective Development Of The Railway Station Akhangaran-Tukimachi-Sirdarya, D.I. Ilesaliev, S.B. Sattorov
Journal of Tashkent Institute of Railway Engineers
The planned China-Kyrgyzstan-Uzbekistan railway line is designed to connect East Asia with the Middle East and Southern Europe. However, aging of fixed assets of railways significantly reduces reliability and their throughput in the conditions of a continuously growing volume of freight traffic. This problem is associated not only with the development of new or improvement of existing technical solutions, but also with technological solutions related to planning, organizing and managing traffic flows in the future. After the launch of the China-Kyrgyzstan-Uzbekistan railway line, the Tukimachi station will become a major railway junction at the crossroads of North-South and East-West transport …
Issues Of Regulation Of Train Locomotives Of The Railway Section Chukursay-Saryagash,
2019
Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan
Issues Of Regulation Of Train Locomotives Of The Railway Section Chukursay-Saryagash, M.N. Masharipov, Sh.M. Suyunbaev, M.M. Rasulmukhamedov
Journal of Tashkent Institute of Railway Engineers
The successive arrival of freight trains to the station performing border control of trains leads to a glut of adjacent sections by trains, mainly due to the employment of border guard brigades. Without the use of operational solutions in such conditions, the reserve of bandwidth is reduced and the need for locomotives is increased due to hot downtimes when the train station is not accepted for border control. This article has developed a methodology for regulating train locomotives, which allows to increase the useful work of train locomotives. The developed methodology will assist engineers and technicians in the connection of …
The Method Of Calculating The Middle Simple Locomotive And The Train Composition In The Turnover Point Based On The Modeling In The Conditions Of A Pair Traffic Of Trains,
2019
Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan
The Method Of Calculating The Middle Simple Locomotive And The Train Composition In The Turnover Point Based On The Modeling In The Conditions Of A Pair Traffic Of Trains, M.N. Masharipov
Journal of Tashkent Institute of Railway Engineers
The article developed a method for calculating the average downtime of a locomotive and the composition of a train at a turnaround point based on modeling in a pair train schedule. As a result of this, it is scientifically substantiated that strict adherence to the principle “trains do not expect a locomotive” will lead to a significant increase in the cost of locomotive hours at the point of turnover
Method Of Upgrading A Cargo Transport Units,
2019
Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan
Method Of Upgrading A Cargo Transport Units, Avaz Mirsultanovich Merganov
Journal of Tashkent Institute of Railway Engineers
The costs associated with handling and transport- warehousing operations reaching about half of the total costs of the transportation process. In this regard, it is necessary to study the issues of consolidation of cargo units, as this will increase productivity and minimize logistics costs. This article describes the search algorithm for the consolidation of cargo units. The study also provides mathematical models of the relationship between the parameters of a piece load, container and a standard pallet. The practical significance is to increase the utilization rate of the standard pallet, besides the proposed method will allow you to choose the …
Mathematical Model Of Determining The Optimal Period Of Technical Maintenance Of The Special Self-Propelled Rolling Stock,
2019
Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan
Mathematical Model Of Determining The Optimal Period Of Technical Maintenance Of The Special Self-Propelled Rolling Stock, Z.G. Mukhamedova
Journal of Tashkent Institute of Railway Engineers
The article covers the mathematical model for determining the optimum periodicity of maintenance, separately for mechanical, electrical and hydraulic equipment for emergency recovery vehicles
A Study Of The Implementation Of Standards-Time Of Wagons At Sorting Station,
2019
Petersburg State University of Railways of Emperor Alexander I, Russia
A Study Of The Implementation Of Standards-Time Of Wagons At Sorting Station, D.B. Butunov
Journal of Tashkent Institute of Railway Engineers
The implementation of the established norms of the time spent by cars at the sorting station is investigated. The methods of statistical data processing and comparison of the time spent at the station with the established scheduled tasks were used. The structure of the time spent by transit cars with processing at the sorting station is analyzed. An element-by-element analysis of the time of transit cars with processing is carried out. The average daily savings and unproductive loss of time on the elements are determined. The costs of processing cars at the station, falling on each element of the time …
Geometric Formation Of Schemes Of Technical Objects In Automated Design Systems,
2019
Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan
Geometric Formation Of Schemes Of Technical Objects In Automated Design Systems, M.A. Khadzhimuhametova
Journal of Tashkent Institute of Railway Engineers
This paper discusses the issues of mathematical support for the formation of various schemes of complex technical objects for a computer-aided design subsystem. Information is given on the description of the station diagram using finite element methods. On the one hand, it is required that the mathematical model be as universal as possible (cover all types of de-signed schemes), accurate, algorithmically reliable. On the other hand, it is required to ensure the minimum cost of the required memory of com-puter time. These contradictions are eliminated by creating a bank of models. Models are planned from separate modules of structural and …
Development Of Production Technology Of Foreign Resource-Saving Induction Motors,
2019
Tashkent Institute of Railway Engineers, Tashkent, 100167, Uzbekistan
Development Of Production Technology Of Foreign Resource-Saving Induction Motors, S.N. Kayumov
Journal of Tashkent Institute of Railway Engineers
In the paper of work on the topic "Of Ethnology construction and work of asynchronous engines", in the laboratory class, the control task, conclusions and annexes. In accordance with the curriculum in the discipline "Electric and basis electronics", the fundamentals of the theory of asynchronous squirrel-cage rotors are developed ethnologic. A training module is developed, and a method for performing laboratory work, innovations and foreign experience, in the same place, a brief description of the curriculum of the program, in the laboratory class, the control task, conclusions and annexes.
